Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Qual é a classificação do Grande Prêmio do Canadá?
 ###Tabelas: CREATE TABLE doubles_titles_23 (doubles_titles_23_id AUTO_INCREMENT PRIMARY KEY, Outcome VARCHAR, Date INT, Tournament VARCHAR, Surface VARCHAR, Partner VARCHAR, Opponents in the final VARCHAR, Score in the final VARCHAR) CREATE TABLE itf_circuit_doubles:_9_4–5 (itf_circuit_doubles:_9_4–5_id AUTO_INCREMENT PRIMARY KEY, Outcome VARCHAR, Date VARCHAR, Tournament VARCHAR, Surface VARCHAR, Partner VARCHAR, Opponent in the final VARCHAR, Score in the final VARCHAR) CREATE TABLE lpga_tour_career_summary (lpga_tour_career_summary_id AUTO_INCREMENT PRIMARY KEY, Year INT, Tournaments played INT, Cuts made* INT, Wins INT, 2nd INT, Top 10s INT, Best finish VARCHAR, Earnings ($) INT, Money list rank VARCHAR, Scoring average VARCHAR, Scoring rank VARCHAR) CREATE TABLE minor_competitions (minor_competitions_id AUTO_INCREMENT PRIMARY KEY, Competition VARCHAR, Played INT, Derby County INT, Draw INT, Nottingham Forest INT, Derby County Goals INT, Nottingham Forest Goals INT) CREATE TABLE grands_prix (grands_prix_id AUTO_INCREMENT PRIMARY KEY, Rd. INT, Grand Prix VARCHAR, Pole Position VARCHAR, Fastest Lap VARCHAR, Winning Driver VARCHAR, Constructor VARCHAR, Report VARCHAR)  
SELECT Rd. FROM grands_prix WHERE Grand Prix = Canadian Grand Prix